Spotlight Cam Battery and Night Vision Operation

I have been reviewing the specs and also gone thru posts in the community and pretty close to purcasing two cameras. I plan to enable the cameras only when I am away from home or at night. I am in a rural area and would like to catch vids of any creatures, not just people. During the day when at home I do not need the cameras, I can take care of my own security. Do not have any neighbors close enough to benefit from any vids. It seems to me from all I have read that disabling night vision will produce much better results at night since I will get LED illumination of some part of the coverage area after the camera is trigered by motion. The lights come on and I will get a color image of the illuminated area, not just the gray scale night vision image. Is this a correct assumption and do any others do this also? Is that a mode of operation that can be done thru the app. I would really like to have this figured out before I make the purchase. Thanks for any info.